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| From: | Stefan Monnier |
| Subject: | bug#12314: 24.2.50; `add-to-history': use `setq' with `delete' |
| Date: | Sun, 09 Sep 2012 10:44:01 -0400 |
| User-agent: | Gnus/5.13 (Gnus v5.13) Emacs/24.2.50 (gnu/linux) |
>> Because it avoids memory allocation. I.e. 99% of the uses of
>> delete/delq/nconc are simple optimizations.
> I meant "why does it matter FOR THE USER that the modification was
> destructive?" Users don't care about optimizations, they only care
> about performance.
Because this optimization improves performance,
Stefan
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